ZKTeco 4-door 1-way Access Control Panel Controller, Part# US-C3-400 HDMI HDBaseT over Ethernet Extender Kit few FXS/FXO ports can be

few FXS/FXO ports can be used with the enterprise PBX while the other FXS/FXO ports can be interfaced with the PSTN for public calls

SAMSUNG SRD-440-500 is a 4CH Value H

5m of audio input and 3m of audio output

And E12CCX Tool

ZKTeco 4-door 1-way Access Control Panel Controller, Part# US-C3-400 HDMI HDBaseT over Ethernet Extender Kit few FXS/FXO ports can beThe quality ZKTeco US C3 400 4 door 1 way Access Control Panel Controller is a built in Advanced Access Control that supports the full range of card readers and TCP IP Communication. It is easily programmable to add lights, alarms, annunciators, intrusion detection, or more. Specifications: Capacity: Users: 30,000, Events: 100,000 Communication: TCP IP, RS485 and Ethernet Recommended Power: 12V DC, 3A Choice of Readers: Card or Fob Keypad Waterproof